Lifting-jack



H. G. LANE.

LIFTING JACK.

(N Modle'l.)v

, Patented 0st'. 7, 1884.

Wi/Luge; E E.

' which it may be desired to raise.

"UNTTnn SiTaTns FaTiewT Trice.

HENRY G. LANE, 0F BUGYRUS, CHI.

SPEGIFICATION forming part of Letters Patent No. 306,265, dated October7, 1884.`

Application filed August 25, 1884. (No model.)

To aZZ whom, it may concern,.-

Be it known that I, HENRY G. LANE, citizen of the United States,residing at Bucyrus, in the county of Crawford and State of Ohio, haveinvented certain new and useful Improvements in Lifting-Jacks; and I dodeclare the following to be a full, clear,` and exact descrip` tion ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters and gures of reference markedthereon,which form a part of this specification. y

My invention` relates to lifting-jacks; and it consists in certain novelconstructions and co1nbinations of parts, as will be more fullydescribed hereinafter.

In the drawings, Figure lis a side elevation of my jack. Fig. 2 is asimilar view with one side of the standard broken away. Fig. 3 is is arear elevation of the jack. Fig. 4 is aside view ofthe adjustablebearing-bar, all of which will be described.

In carrying out my invention I prefer to use a base, A, on which tosupport the standard,

which consists of two uprights, B B, separated- 3, and connected attheir upas shown in Fig. per ends by means of transverseconnectingpieces B, which serveas bracesfor the standard and as keepersto retain the lifting-bar. This lifting-bar C is composed of the sidebars, C/ C', and the adjustable bearing-bar C2. The bars C are held attheir upper ends between the uprights and pieces B, and have on theopposite edges of their lower ends earsC, which extend laterally alongand overlap the edges of the upright. By means of these ears thelifting-bars are held at their lower ends from lateral displacement, andtheir upper ends are similarly held between the pieces B B', the saidlifting-bar being movable vertically between the uprights for thepurposes of elevating the axle of a vehicle or other object Thebearing-bar G2 is provided with a longitudinal series of perforations,C", and it is secured to the bars C C by means of a transverse pin, D,passed through coincident holes in the bars C and one of holes C* in barC2, securing said parts together, as will be understood.

It will be seen that by passing the pin D sired, with reference to thebars C', so as to iit the device to objects of different heights fromthe ground.

While the lifting-bar may be elevated by any suitable form of lever orother expedient, I prefer in practice to use the lever E, having theright-angled arm E', and pivoted at c between the uprights B B near Athelower ends thereof. This arm F/ of the leveris connected by a pitman orlink, F, with the li.fting-bar. The lower ends of the link are pivotedto the extremity of arm E', and its upper end is pivoted to the lowerend of the lifting-bar. I prefer to form these connections by insertingthe upper end of the link between the bars G of the lifting-bar, andbifurcating or slotting the lower end of the link, and inserting thepointof the arm in said slot, as most clearly shown vin Fig. 3.

It will be noticed that the lower end or portion of the link is made ofa thickness approximately equal the width of space between the upright,and iits suiiiciently close therebetween to prevent any considerablemotion from side to side. By this means I obviate all lateral strain onthe pivots or connection, and in crease the strength and firmness of theapparatns.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s

' 1. In a lifting-jack, the combination, with the standard comprisingtwo uprights separated and connected at their upper ends by cross-bars,of the lifting-bar held and movable vertically between the uprightsandthe crossbars, and provided at its opposite Vlower corner with earsprojected laterally along the edges of the upright and elevating device,substantially as set forth.

2. In a lifting-jack, the combination of the uprights connected at theirupper ends by cross-bars, the lifting-bar held and movable between theupright and cross-bars :and consisting of the side bars provided attheir lower ends with lateral ears, and the bearing-bar held andadjustable longitu dinallybetween said side bars and elevating devices,substantially as set forth.

IOO

3. The combination, with the uprights and the bars B, and provided atits lower corners the liting-bar, of an elevating-lever arranged withlateral ears G3, the lever E, pivoted at e between said lifting-bar andthe link pivoted and provided with arm E', and the link F, all 15 at itsupper end to the lifting-bar and at its arrangedand operatingsubstantially as and lower end or portion made of :t thickness to forthe purposes specified. closely flt between the'uprights, substantiallyIn testimony whereof I affix my signature in as set forth. presence oftwo witnesses.

4. The lifting-jack, substantially as herein p described and shown,Consisting of the up- HENRY G LANE rights B B7 the cross-bars BB',oonneoting the Witnesses: upper ends of the uprights, the lifting-barISAAC CAHILL, held'and movable between the uprights and S. B. MATsoN.

